DirectAnywhere. Yes I was wondering the same thing as I was writing. It probably has something to do with GlideSlope and/or Ground Speed vs time spent below a certain radio altimeter value before touchdown.
So if you aim for 1000 metres down a non-ILS runway and then flare and land normally, will it take note? I cannot answer that question. But I suspect not.
Anyway the point is that for the vast majority of aircraft PAPI sets them up for a long landing. Our company consider this a parameter worth monitoring and will make it known if an undesirable trend appears, especially if involves a particular aircraft type and/or runway.